130W AC Power adapter problems - your system will operate slower

I did not think that 130W would cause any issues vs 150W that came with it but here it is. Is this a problem and what can do I about it (other than getting a 150W AC Adapter)
No way to turn it off in BIOS, already set to off but still appears


130W AC Power Adapter has been determined
You system will operate slower and the battery will take more time to charge.
This problem might be solved by:
Ensure the plug is inserted completely for best system operation

 

You can't do anything about it.

Your laptop was designed to operate off of a 150W adapter. You cannot make it magically accept 130W.

Buy a 150W adapter. Return or sell the 130W.

 

It still works with no apparent side effects. Other than the stupid message I cannot disable. Everything seems as before. I am seeing 2.2Ghz cpu speed before and after. So what changes?

 

I can use the 9550 with the 45W adapter. It is heavily throttled - particularly the GPU, while the CPU feels like on battery, responds slowly but eventually revs to full clock after prolonged CPU load, eating into the battery charge along despite the cord connected.

So I'd expect you to see a difference in the GPU clock. 130W should be enough to feed the CPU at full load.

 

You don't know. That's the thing.

It could be nothing, and your laptop works perfectly for its lifetime. It could be subtle, like a system that crashes more than it should, or a CPU that throttles down slightly more than it should, or a battery that goes through duty cycles faster than expected. Or it could be obvious, like your system bursting into flames on your desk.

I'm not sure of your particular situation. But for me, I need my laptop fully operational as much as possible, because I depend on it for work. Therefore, you want to put as little risk of technical issues as possible when using it. Using an out-of-spec power source adds risk. You don't want your laptop to die right as you are using it for your big work presentation / project / exam / paper due in an hour. Ain't nobody got time for that.

Additionally, laptops are a lot harder to troubleshoot / repair than desktops. On a desktop, you can pretty much disassemble the entire machine and troubleshoot each part individually. For a laptop, there are many many problems that could pop up, that require replacement of the entire motherboard, however minor they are (e.g. loose audio input jack? Replace mobo. Status LED lights not working? Replace mobo).

 

What laptop?
I can turn off power adapter warnings on all of my dell laptops (9560, 9350, latitude 5175). It's fine to run it on a smaller adapter, chances are that's so close that it will still operate at near max clocks. I often run my 9560 on my 65w USB-c adapter or the 95W from the 9350 without issue. I wouldn't game on them because it will throttle the GPU down, but it doesn't hurt anything.

 

What is the laptop that you are using??

 

Dell L702x

 

or a battery that goes through duty cycles faster than expected.

Conventional wisdom says that it's better to charge Li-ion batteries with lower Amps, taking longer time. It's easier on the batteries and they last longer, with more charge-discharge cycles.
It's easier on the battery if it gets hit with 1/2 Amps or 1/4 Amps versus 2Amps.

So the fact the battery charges slower is a good thing.

I got a new battery less than 2 years ago and it has gone completely bad with basically no usage. I wonder if the charger or AC adapter fried it somehow. It was a genuine Dell battery.

I also wonder if they de-tune the CPU to a lower frequency or make it run slower somehow, meaning it will experience less heat, also resulting in a longer component lifetime.

I don't crunch numbers on this L702x and can see no apparently changes in how it operates.

 

It runs fine on 130W.
Just message pops up on start up.

You can disable "Quickset" in startup if you don't want to see the message again and again.